/*banner start*/
.hb_top {
    width: 770px;
    height: 480px;
    overflow: hidden;
    position: relative
}

.hb_top ul {
    height: 480px;
    position: absolute
}

.hb_top ul li {
    float: left;
    width: 770px;
    height: 480px;
    overflow: hidden;
    position: relative;
    background: #000
}

.hb_top ul li img {
    width: 770px;
    height: 480px
}

.hb_top ul li div {
    position: absolute;
    overflow: hidden
}

.hb_top .btnBg {
    position: absolute;
    width: 770px;
    height: 20px;
    left: 0;
    bottom: 0;
    background: #000;
    opacity: 0.3;
}

.hb_top .btn {
    position: absolute;
    width: 760px;
    height: 10px;
    padding: 5px 10px;
    right: 0;
    bottom: 0;
    text-align: right
}

.hb_top .btn span {
    display: inline-block;
    _display: inline;
    _zoom: 1;
    width: 25px;
    height: 10px;
    _font-size: 0;
    margin-left: 5px;
    cursor: pointer;
    background: #fff;
    opacity: 0.2;
}
.hb_top .btn .indicators_btn_active{
    opacity: 0.5;
}

.hb_top .preNext {
    width: 45px;
    height: 100px;
    position: absolute;
    top: 38%;
    background: url(//pic.winekee.com/web/sprite.png) no-repeat 0 0;
    cursor: pointer;
    opacity: 0.2;
    transition: all .2s ease;
}
.hb_top .preNext:hover{
    opacity: 0.5;
}
.hb_top .pre {
    left: 0
}

.hb_top .next {
    right: 0;
    background-position: right top
}
/*banner end*/